It appears you have not yet registered with our community. To register please click here...

 
Go Back [M] > Madshrimps > Articles & Howto's
Bursting the Athlon 64 Memory bandwidth bubble Bursting the Athlon 64 Memory bandwidth bubble
FAQ Members List Calendar Search Today's Posts Mark Forums Read


Bursting the Athlon 64 Memory bandwidth bubble
Reply
 
Thread Tools
Old 23rd May 2005, 11:57   #1
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,020
jmke has disabled reputation
Default Bursting the Athlon 64 Memory bandwidth bubble

Do you need high speed memory to have the fastest A64 on the block? We donīt think so, we think having memory faster then PC3200 is overkill and does not improve real world performance one bit. We put our money where our mouth is and prove that Gamers don't need expensive memory to enjoy fast Athlon 64 performance.

http://www.madshrimps.be/gotoartik.php?articID=325
__________________
jmke is offline   Reply With Quote
Old 23rd May 2005, 13:42   #2
BAMBI
 
Posts: n/a
Default

WOW i would have expected a much bigger difference!

would be interesting to see if there would be differences in other apps like encoding, and also have a pp4 comparison.

Great job on the test though
  Reply With Quote
Old 23rd May 2005, 13:56   #3
Member
 
Bosw8er's Avatar
 
Join Date: May 2002
Posts: 3,711
Bosw8er Freshly Registered
Default

article

Is the human eye capable of noticing the difference between 85 or 93 FPS ?
__________________
"Think of how stupid the average person is, and realize half of them are stupider than that."
Bosw8er is offline   Reply With Quote
Old 23rd May 2005, 14:07   #4
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,020
jmke has disabled reputation
Default

24 FPS is actually enough to trick the eye for movies to be "smooth"; PC games however sit more comfortable at 60FPS; and First Person Shooters can benefit from >100FPS, although this depends from person to person.

anyway, noticing the difference between anything >60FPS is in my humble opinion very hard, the advantage of having a higher average FPS is that you also get higher frame rates when there is a lot of action on screen and there is a dip in framerate
__________________
jmke is offline   Reply With Quote
Old 23rd May 2005, 15:36   #5
Jaco
 
Posts: n/a
Default



low latency (2-2-2 timings) is the magic word for A64...
you don't need all that bandwidth
  Reply With Quote
Old 23rd May 2005, 15:58   #6
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,020
jmke has disabled reputation
Default

and even that is disputable; CL2.5 3-3-7 seems to be holding up quite good also
__________________
jmke is offline   Reply With Quote
Old 23rd May 2005, 16:01   #7
kristos
 
Posts: n/a
Default

very nice article

someone also compared the effects of cas and ras to cas on XS a few months ago and his results were comparable.

http://www.xtremesystems.org/forums/...ad.php?t=48634
  Reply With Quote
Old 23rd May 2005, 16:04   #8
perdomot
 
Posts: n/a
Default

I would also like to see how bandwidth affect encoding with popular software like DVD Shrink and TMPEG encoder. Any chance someone can try this?
  Reply With Quote
Old 23rd May 2005, 17:12   #9
Member
 
Sidney's Avatar
 
Join Date: Mar 2004
Posts: 15,738
Sidney Freshly Registered
Default

I am now able to run the GSkill @ 1.5-2-2-5 with 3 Volt 200 Mhz; hardly any difference with the exception of dropping Sandra mem bandwidth on benchmark; otherwise, there is no performance gain to speak of.

Still bandwidth >6200mb/s; too bad my DVD Shrink is in the Prescott system, otherwise, I will burn a copy DVD disks to test the speed ..... then again, it also depends on HD.
__________________
lazyman

Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II
Sidney is offline   Reply With Quote
Old 23rd May 2005, 22:10   #10
Haut^Karl
 
Posts: n/a
Default

While the premise of the article is interesting, the testing is flawed. 'gamer' set out to prove that increasing memory bandwidth is unnecessary to gamers so he selected two HTTs while holding timings the same. Good start. Then for testing purposes, he/she chooses 2 graphics limited games(Halflife not as much) AND runs them at 10x7 and 12x8 *maximum quality* to add insult to injury! Even with older games(read Quake3) this taxes the graphics card more than the CPU. The article simply reillustrates that those 2 games are graphics limited and abandons the premise of memory/cpu bandwidth.

'Gamer' could you retest using 6x4, possibly 8x6, using a less graphics limited game with *minimal* graphics settings to truly test memory/cpu bandwidth? I am certainly interested in the findings.

in my humble opinion, I don't believe we "gamers" only play the most recent games and that's all. As you can see from the responses above, we re-encode DVDs & video and play many, many other games & applications.

Thanks
  Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
OCZ PC2-6400 ReaperX HPC Enhanced Bandwidth 4GB Memory Sidney WebNews 0 5th January 2008 18:34
Rambus Aims for Terabyte-Per-Second Memory Bandwidth jmke WebNews 0 26th November 2007 15:20
Memory Bandwidth & Capacities jmke WebNews 1 24th October 2005 01:44
Memory Bandwidth vs. Latency Timings Sidney WebNews 1 13th September 2005 16:13
Athlon 64 X2: New Memory Dividers and Multitasking Performance jmke WebNews 1 13th August 2005 18:46
AMD Athlon 64 Processors on E Core: Memory Controller Peculiarities in Detail jmke WebNews 0 1st August 2005 10:33
Memory Bandwidth Shootout - pt.1 Sidney WebNews 0 16th March 2005 02:47
Athlon 64 Memory: Rewriting the Rules jmke WebNews 2 2nd October 2004 03:47
OCZ Announces PC-3700 Enhanced Bandwidth DDR Memory jmke WebNews 0 21st April 2004 14:09
Memory Bandwidth vs. Latency Timings jmke WebNews 9 13th November 2003 14:25

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


All times are GMT +1. The time now is 10:49.


Powered by vBulletin® - Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO